WO2014146462A1 - Procédé de transmission d'informations de commande, équipement d'utilisateur et station de base - Google Patents
Procédé de transmission d'informations de commande, équipement d'utilisateur et station de base Download PDFInfo
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- WO2014146462A1 WO2014146462A1 PCT/CN2013/089113 CN2013089113W WO2014146462A1 WO 2014146462 A1 WO2014146462 A1 WO 2014146462A1 CN 2013089113 W CN2013089113 W CN 2013089113W WO 2014146462 A1 WO2014146462 A1 WO 2014146462A1
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- WIPO (PCT)
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- user equipment
- information
- dpcch
- time slots
- base station
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
Definitions
- the embodiments of the present invention relate to communication technologies, and in particular, to a control information transmission method, a user equipment, and a base station.
- a voice service is usually transmitted through a DCH (Dedicated Channel), and a TTI (Transmit Time Interval) of a voice service is 20 ms, including 30 time slots.
- the user equipment sends uplink data to the base station.
- the data packet is transmitted in the first 10 ms radio frame, and the data packet is repeatedly transmitted in the second 10 ms radio frame.
- the user equipment In order to enable the base station to decode the uplink data, the user equipment also needs to provide TFCI (Transmit Format Combined Indicator) information to the base station.
- TFCI Transmit Format Combined Indicator
- the encoded TFCI information has a 32-bit bit, and the normal carrying of the TFCI information requires 15 time slots, each time slot carries 2 bits, and the common bearer 30 bits, and the 31st bit and the 32 bit do not transmit.
- the base station After receiving the complete TFCI information, the base station can decode the received uplink data, which is relatively inefficient.
- the slot format of the slot is fixed, and the application is not flexible.
- Embodiments of the present invention provide a control information transmission method, a user equipment, and a base station, to avoid the defect of low efficiency caused by transmitting TFCI information to a base station through one radio frame, and realizing the use of the transformed DPCCH in one TTI.
- the gap format increases the flexibility of the application.
- Another embodiment of the present invention provides a control information transmission method, a user equipment, and a base station, which are used to eliminate audio interference generated by voice information during control information transmission.
- an embodiment of the present invention provides a control information transmission method, including: The user equipment sends the uplink data to the base station through the dedicated physical data channel DPDCH; the user equipment sends the encoded transmission format to the base station through the dedicated physical control channel DPCCH in a continuous, first predetermined number of first time slots.
- the combination indicates the TFCI information, so that the base station decodes the received uplink data sent by the user equipment according to the encoded TFCI information, where the first preset quantity is less than one radio frame.
- the number of time slots included the user equipment sends control information to the base station by using the DPCCH in a second preset number of second time slots, where the TFCI information is not included in the control information.
- the DPCCH slot format of the first slot includes a TFCI field; and the TFCI field is not included in a DPCCH slot format of the second slot.
- control information transmission method further includes:
- the user equipment decodes the received downlink data, and if the decoding is unsuccessful, sends a negative to the base station by using the DPCCH in the first time slot or the second time slot according to a feedback rule.
- Responding to the NACK information so that the base station continues to send downlink data to the user equipment through the DPDCH according to the NACK information; if the decoding is successful, according to the feedback rule, in the first time slot or the second In the time slot, the acknowledgement ACK information is sent to the base station by using the DPCCH, so that the base station stops sending downlink data to the user equipment according to the ACK information.
- the DPCCH slot format used to send the NACK information or the ACK information includes an ACK in a DPCCH slot format a domain; an ACK field is included in a DPCCH slot format of the second slot for transmitting the NACK information or the ACK information.
- the DPCCH slot format of the second slot that does not send the NACK information or the ACK information adopts a DPCCH slot format 1 Or DPCCH slot format 4.
- the user equipment is in a continuous, first preset number of first time slots, by using dedicated physics before the control channel DPCCH sends the encoded transport format combination indication TFCI information to the base station, the method further includes:
- the generated TFCI information is encoded to obtain the encoded TFCI information.
- the user equipment determines the TFCI information according to a quantity of a transport format combination TFC in a pre-configured transport format combination set TFCS
- the number of bits including:
- the number of bits of the TFCI information is determined by applying the following formula:
- N "l.g 2 M, where M is the number of TFCs, M is an integer and M is greater than 1, [log 2 represents rounding up the result of "l.g 2 M].
- the number of bits of the encoded TFCI information transmitted in one of the first time slots is not less than 5.
- an embodiment of the present invention provides a user equipment, including:
- a data sending unit configured to send uplink data to the base station by using a dedicated physical data channel DPDCH
- a control information sending unit configured to send, by using a dedicated physical control channel DPCCH, in a continuous, first predetermined number of first time slots
- the base station sends the encoded transport format combination indication TFCI information, so that the base station decodes the received uplink data sent by the user equipment according to the encoded TFCI information, where the first pre- The number is smaller than the number of time slots included in one radio frame; in the second preset number of second time slots, the control information is sent to the base station by using the DPCCH, where the TFCI information is not included in the control information.
- the DPCCH slot format of the first slot includes a TFCI field; and the TFCI field is not included in a DPCCH slot format of the second slot.
- the user equipment further includes:
- a data receiving unit configured to receive downlink data that is sent by the base station by using the DPDCH; a first processing unit, configured to decode the downlink data received by the data receiving unit, and if the decoding is unsuccessful, according to the feedback
- the rule causes the control information sending unit to send a negative acknowledgement NACK information to the base station by using the DPCCH in the first time slot or the second time slot, so that the base station continues to pass according to the NACK information.
- the base station Transmitting, by the DPDCH, the downlink data to the user equipment; if the decoding is successful, causing the control information sending unit to pass the DPCCH in the first time slot or the second time slot according to the feedback rule
- the base station sends a response ACK message, so that the base station stops sending downlink data to the user equipment according to the ACK information.
- the DPCCH slot format of the first time slot used to send the NACK information or the ACK information An ACK field is included; an ACK field is included in a DPCCH slot format of the second slot for transmitting the NACK information or the ACK information.
- the DPCCH slot format of the second slot that does not send the NACK information or the ACK information adopts a DPCCH slot format 1 Or DPCCH slot format 4.
- the user equipment further includes:
- the second processing unit is configured to generate, according to the number of the transport format combination TFCs in the pre-configured transport format combination set TFCS, the number of bits of the TFCI information to generate the TFCI information with the determined number of bits, and the generated TFCI
- the information is encoded to obtain the encoded TFCI information.
- the second processing unit is further configured to determine a bit number N of the TFCI information by applying the following formula:
- N "l.g 2 M, where M is the number of TFCs, M is an integer and M is greater than 1, [log 2 represents rounding up the result of "l.g 2 M].
- the number of bits of the encoded TFCI information transmitted in one of the first time slots is not less than 5.
- an embodiment of the present invention provides a user equipment, including:
- a data transmitter configured to send uplink data to the base station by using a dedicated physical data channel DPDCH; and a control information transmitter, configured to send, by using a dedicated physical control channel DPCCH, in a continuous, first predetermined number of first time slots
- the base station sends the encoded transport format combination indication TFCI information, so that the base station decodes the received uplink data sent by the user equipment according to the encoded TFCI information, where the first pre- The number is smaller than the number of time slots included in one radio frame; in the second preset number of second time slots, the control information is sent to the base station by using the DPCCH, where the TFCI information is not included in the control information.
- the DPCCH slot format of the first slot includes a TFCI field; and the TFCI field is not included in a DPCCH slot format of the second slot.
- the user equipment further includes:
- a receiver configured to receive downlink data that is sent by the base station by using the DPDCH;
- a processor configured to decode the downlink data received by the receiver, and if the decoding is unsuccessful, enable the control information transmitter to be in the first time slot or the second time slot according to a feedback rule Transmitting the negative acknowledgement NACK information to the base station by using the DPCCH, so that the base station continues to send downlink data to the user equipment by using the DPDCH according to the NACK information; if the decoding is successful, according to the feedback rule And causing, by the control information transmitter, to send, by using the DPCCH, acknowledge ACK information to the base station in the first time slot or the second time slot, so that the base station stops according to the ACK information to the The user equipment sends downlink data.
- the DPCCH slot format used to send the NACK information or the first time slot of the ACK information includes an ACK a domain; an ACK field is included in a DPCCH slot format of the second slot for transmitting the NACK information or the ACK information.
- the DPCCH slot format of the second slot that does not send the NACK information or the ACK information adopts the DPCCH slot format 1 Or DPCCH slot format 4.
- the user equipment further includes:
- a processor configured to determine a number of bits of the TFCI information according to a quantity of a transport format combination TFC in a pre-configured transport format combination set TFCS, generate the TFCI information with a determined number of bits, and generate the TFCI
- the information is encoded to obtain the encoded TFCI information.
- the processor is further configured to determine a bit number N of the TFCI information by applying the following formula:
- N "l.g 2 A ⁇ ; where M is the number of the TFCs, M is an integer and M is greater than 1, [log 2 indicates that the result of "l.g 2 M] is rounded up.
- the number of bits of the encoded TFCI information sent in one of the first time slots is not less than 5.
- the embodiment of the present invention provides a control information transmission method, including: receiving, by a user equipment, downlink data that is sent by a base station through a dedicated physical data channel DPDCH; and the user according to the decoding situation of the downlink data by the user equipment.
- the device sends a negative acknowledgement NACK message or a response ACK message to the base station by using a dedicated physical control channel DPCCH in a second preset number of second time slots, where one radio frame includes a first preset number of first time slots and The first preset number of first time slots of the second preset number of second time slots are used by the user equipment to send, by using the DPCCH, the encoded transport format combination indication TFCI information to the base station, where The second preset number of second time slots is not used by the user equipment to send the TFCI information.
- the user equipment passes the DPCCH in a second preset number of second time slots according to the decoding situation of the downlink data by the user equipment.
- Transmitting the NACK information or the ACK information to the base station including: according to the decoding situation of the downlink data by the user equipment, the user equipment passes in each of the second preset number of second time slots
- the DPCCH sends NACK information or ACK information to the base station.
- the user equipment passes the DPCCH in a second preset number of second time slots according to the decoding situation of the downlink data by the user equipment.
- the sending the NACK information or the ACK information to the base station includes: if the user equipment does not successfully decode the downlink data before the end of the second preset number of second time slots, the user equipment is in each In the second preset number of second slots, the NACK information is sent to the base station by using the DPCCH.
- the user equipment passes the DPCCH in a second preset number of second time slots according to the decoding situation of the downlink data by the user equipment.
- Transmitting the NACK information or the ACK information to the base station includes: if the user equipment successfully successfully decodes the downlink data before or at the beginning of the second preset number of second time slots, the user equipment is And transmitting, by the DPCCH, the ACK information to the base station in the second preset number of second time slots.
- the user equipment is in the second preset number of second time slots according to the decoding situation of the downlink data by the user equipment, The sending, by the DPCCH, the NACK information or the ACK information to the base station, if the user equipment fails to successfully decode the downlink data before or at the beginning of the second preset number of second time slots, but in the The downlink data is successfully decoded before the end of the second preset number of second time slots, and the user equipment sends a NACK to the base station by using the DPCCH in the first to the second second time slots.
- N is the second preset
- P is a positive integer smaller than N
- N is the second preset
- the number of the second time slots, N is a positive integer greater than or equal to 2.
- the user equipment determines the number of bits of the TFCI information according to the number of transport format combinations TFC in the pre-configured transport format combination set TFCS .
- the first preset number of first time slots are consecutive in the radio frame, and the second preset number of The second time slot is contiguous in the radio frame.
- the DPCCH slot format of the first time slot includes a TFCI field
- the DPCCH slot format of the second time slot includes an ACK. Domain or NACK domain.
- an embodiment of the present invention provides a control information transmission method, including: transmitting downlink data to a user equipment through a dedicated physical data channel DPDCH; and receiving, by using a dedicated physical control channel DPCCH, in a second preset number of second time slots.
- the receiving, by the DPCCH, the NACK information or the ACK information sent by the user equipment in the second preset number of second time slots including: The NACK information or the ACK information sent by the user equipment is received by the DPCCH in the second preset time slot.
- the receiving, by using the DPCCH, the NACK information or the ACK information sent by the user equipment in the second preset number of the second time slots includes: if the user equipment is The downlink data is not successfully decoded before the second preset number of second time slots are ended, and the user equipment is received by the DPCCH in each of the second preset number of second time slots. NACK information sent.
- the receiving, by the DPCCH, the NACK information or the ACK information sent by the user equipment in the second preset number of the second time slots includes: if the user equipment is The downlink data is successfully decoded before or at the beginning of the second preset number of second time slots, and in each of the second preset number of second time slots, the DPCCH is received by the DPCCH.
- the ACK information sent by the user equipment includes: if the user equipment is The downlink data is successfully decoded before or at the beginning of the second preset number of second time slots, and in each of the second preset number of second time slots.
- the receiving, by the DPCCH, the NACK information or the ACK information sent by the user equipment in the second preset number of the second time slots includes: if the user equipment is The downlink data is not successfully decoded before or at the beginning of the second preset number of second time slots, but the downlink data is successfully decoded before the second preset number of second time slots ends.
- the DPCCH receives the ACK information sent by the user equipment, where P is a positive integer smaller than N, and N is the second pre- Let the number of the second time slots, N be a positive integer greater than or equal to 2.
- the number of bits of the TFCI information is determined by the user equipment according to the number of transport format combinations TFC in the pre-configured transport format combination set TFCS .
- the first preset number of first time slots are consecutive in the radio frame, and the second preset number of The second time slot is contiguous in the radio frame.
- the DPCCH slot format of the first time slot includes a TFCI field
- the DPCCH slot format of the second time slot includes an ACK. Domain or NACK domain.
- an embodiment of the present invention provides a user equipment, including: a data receiving unit, configured to receive downlink data that is sent by the base station by using a dedicated physical data channel DPDCH; and a control information sending unit, configured to: according to the user equipment The decoding of the downlink data, in the second preset number of second time slots, sending a negative acknowledgement NACK message or a response ACK message to the base station by using a dedicated physical control channel DPCCH, where one radio frame includes the first pre- Setting a first time slot and a second preset number of second time slots, where the first preset number of first time slots are used by the user equipment to send the code to the base station by using the DPCCH
- the transport format combination indicates TFCI information
- control information sending unit is specifically configured to: according to the decoding situation of the downlink data by the user equipment, in each of the second preset number of second In the time slot, NACK information or ACK information is sent to the base station through the DPCCH.
- control information sending unit is specifically configured to: if the user equipment fails to successfully decode the downlink data before the ending of the second preset number of second time slots And transmitting NACK information to the base station by using the DPCCH in each of the second preset number of second time slots.
- control information sending unit is specifically configured to: if the user equipment successfully decodes before or at the beginning of the second preset number of second time slots The downlink data is sent to the base station by using the DPCCH in each of the second preset number of second time slots.
- control information sending unit is specifically configured to: if the user equipment fails to successfully decode before or at the beginning of the second preset number of second time slots In the downlink data, in the first to the Pth second time slots, the NACK information is sent to the base station by using the DPCCH, and in the P+1th to the Nth second time slots, Sending ACK information to the base station by using the DPCCH, where P is a positive integer smaller than N, N is the number of the second preset number of second slots, and N is a positive integer greater than or equal to 2.
- the embodiment of the present invention provides a base station, including: a data sending unit, configured to send downlink data to a user equipment by using a dedicated physical data channel DPDCH; and a control information receiving unit, configured to use the second preset number of second Receiving, in the time slot, the negative acknowledgement NACK information or the acknowledgement ACK information sent by the user equipment by using a dedicated physical control channel DPCCH, where one radio frame includes a first preset number of first time slots and the second preset number of a second time slot, the first preset number of first time slots is used to receive the encoded transport format combination indication TFCI information sent by the user equipment by using the DPCCH, and the second preset number of second The time slot is not used to receive the TFCI information sent by the user equipment.
- control information receiving unit is configured to receive, by using the DPCCH, the user equipment, by using, in each of the second preset number of second time slots. NACK information or ACK information.
- control information receiving unit is specifically configured to: if the user equipment fails to successfully decode the downlink data before the ending of the second preset number of second time slots And in each of the second preset number of second time slots, receiving NACK information sent by the user equipment by using the DPCCH.
- control information receiving unit is specifically configured to: if the user equipment successfully decodes before or at the beginning of the second preset number of second time slots In the downlink data, the ACK information sent by the user equipment is received by the DPCCH in each of the second preset number of second time slots.
- control information receiving unit is specifically configured to: if the user equipment fails to successfully decode before or at the beginning of the second preset number of second time slots Determining downlink data, but successfully decoding the downlink data before the end of the second preset number of second time slots, and receiving, by the DPCCH, the first to the Pth second time slots
- the NACK information sent by the user equipment, in the second time slot from the P+1 to the Nth receives the ACK information sent by the user equipment by using the DPCCH, where P is a positive integer smaller than N, N is the number of the second preset number of second slots, and N is a positive integer greater than or equal to 2.
- the control information transmission method and user equipment provided by the embodiments of the present invention are known from the foregoing technical solutions.
- the complete TFCI information can be transmitted to the base station in fewer slots, avoiding transmitting TFCI information to the base station through one radio frame. And the resulting inefficiencies are low.
- the transformed DPCCH slot format is adopted, which is applicable to the case of carrying TFCI information and not carrying TFCI information, which can avoid waste of channel resources and improve application flexibility.
- the user equipment continuously sends NACK or ACK information on the second preset number of second time slots, which can effectively avoid high and low level switching, thereby eliminating audio interference generated by the voice information.
- FIG. 1 is a flowchart of a first method for transmitting control information according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a radio frame according to an embodiment of the present invention.
- FIG. 3 is a flowchart of a second method for transmitting control information according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a first user equipment according to an embodiment of the present disclosure.
- FIG. 5 is a schematic structural diagram of a second user equipment according to an embodiment of the present disclosure.
- FIG. 6 is a schematic structural diagram of a third user equipment according to an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of a third user equipment according to an embodiment of the present invention.
- the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
- the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- FIG. 1 is a flowchart of a first method for transmitting control information according to an embodiment of the present invention.
- the control information transmission method provided by the embodiment of the present invention may be specifically applied to a transmission process of control information between a user equipment and a base station in a communication system, and the communication system may be UMTS (Universal Mobile). Telecommunications System, GM (Cloudy Communication System) or LTE (Long Term Evolution).
- GM Universal Mobile Communication System
- LTE Long Term Evolution
- control information transmission method specifically includes:
- Step 10 The user equipment sends uplink data to the base station through the dedicated physical data channel DPDCH.
- Step 20 The user equipment sends the uplink physical control channel DPCCH to the base station in a continuous, first predetermined number of first time slots. Transmitting the encoded transport format combination indication TFCI information, so that the base station decodes the received uplink data sent by the user equipment according to the encoded TFCI information, where the first preset The number is less than the number of time slots included in one radio frame;
- Step 30 The user equipment sends control information to the base station by using the DPCCH in a second preset number of second time slots, where the TFCI information is not included in the control information.
- the DPDCH (Dedicated Physical Data) is passed between the user equipment and the base station.
- step 10 dedicated physical data channel
- DPCCH Dedicated Physical Control Channel
- the user equipment sends a control message to the base station through the DPCCH, and the control information sent in the first preset number of first time slots includes TFCI information, and the control information may further include other control information such as pilot information and power control information. .
- the number of first time slots may be determined according to the number of bits of the TFCI information.
- the TFCI information is lObit, and the TFCI information is encoded.
- the coding algorithm may be, but not limited to, a second-order Reed-Muller coding algorithm.
- the TFCI information encoded by the second-order Reed-Muller coding algorithm is 32 bits, and the user equipment passes through consecutive And transmitting, by the first preset number of first time slots, the 32-bit encoded TFCI information to the base station, where the first preset number is less than the number of time slots included in one radio frame. If a radio frame usually includes 15 slots, the number of bits of the encoded TFCI information transmitted in each first slot should be greater than the number of bits of the encoded TFCI information transmitted in each first slot. The content of the content included in the actual control information needs to be set in advance.
- the number of bits of the encoded TFCI information transmitted in each first slot is 5, and since only the contents of the 31st and 32nd bits of the encoded TFCI information are not transmitted to the base station, the six first slots are passed.
- the encoded TFCI information can be sent to the base station, that is, the encoded TFCI information can be sent to the base station in the first 6 time slots of 20 ms.
- the DPCCH slot format of the first time slot may be pre-configured, and the DPCCH slot format of the first time slot is configured to include a TFCI field, and the number of bits in the TFCI field is not less than 5, to carry the coded TFCI information.
- the uplink data sent by the user equipment may be decoded according to the encoded TFCI information.
- next time slot is referred to as a second time slot
- the encoded TFCI information is transmitted through the six time slots as an example.
- FIG. 2 is a wireless frame according to an embodiment of the present invention.
- a 20ms ⁇ can include two 10ms radio frames, each radio frame includes 15 time slots, respectively time slot 0-time slot 14, wherein time slot 0-time slot 5 is the first time slot, time slot 6 - Time slot 14 is the second time slot. Since the encoded TFCI information has been sent to the base station in the first 6 slots, the control information sent in the second slot may not include the encoded TFCI information, and the DPCCH in the second slot is pre-configured.
- the TFCI field is not included in the slot format, and other control contents may be included in the control information sent in the second slot.
- the time slot 0-time slot 2 may be an idle time slot in a compressed frame, that is, a time slot in which no information is transmitted.
- the code may be transmitted in time slot 3 - time slot 8. After the TFCI information.
- the user equipment sends the uplink data to the base station through the dedicated physical data channel DPDCH, and sends the code to the base station through the dedicated physical control channel DPCCH in the first, first predetermined number of first time slots.
- the subsequent transport format combination indicates the TFCI information, so that the base station decodes the uplink data sent by the received user equipment according to the encoded TFCI information, where the first preset number is smaller than the time slot included in one radio frame.
- the number of the second time slot is sent to the base station by using the DPCCH, where the TFCI information is not included in the control information.
- the complete TFCI information can be transmitted to the base station in fewer slots, avoiding transmitting TFCI information to the base station through one radio frame. And the resulting inefficiencies are low.
- the transformed DPCCH slot format is applied to the case of carrying TFCI information and not carrying TFCI information, which can avoid waste of channel resources and improve application flexibility.
- the number of bits of the encoded TFCI information transmitted in one of the first time slots is not less than 5.
- the DPCCH slot format of the first slot includes a TFCI field.
- the TFCI field is not included in the DPCCH slot format of the second slot.
- Table 1 shows a DPCCH slot format of a first time slot:
- Equation #i time slot (kbps) Rate (ksps) frequency factor (bit / (specific frequency) Equation #i) (channel ratio (channel symbol sub) frame) special/time rate control group) (transmission rate rate slot per radio frame) system)
- the DPCCH slot format can be defined as DPCCH slot format 5.
- the DPCCH slot format includes a TFCI field N TFCI , and the number of bits in the TFCI field is, for example, 5, to carry 5 bits of encoded TFCI information.
- Other control information fields, as well as related format information, are also defined in the DPCCH slot format shown in Table 1.
- the present embodiment only provides a specific format of the DPCCH slot format of the first time slot. A person skilled in the art can set the DPCCH slot format of the first time slot according to actual needs to be in the first time slot.
- the DPCCH slot format includes a TFCI field, and the number of bits in the TFCI field allows the encoded TFCI information to be transmitted through slots included in less than one radio frame.
- FIG. 3 is a flowchart of a second method for transmitting control information according to an embodiment of the present invention. As shown in FIG. 3, the control information transmission method provided in this embodiment may further include:
- Step 40 The user equipment receives downlink data sent by the base station by using the DPDCH.
- Step 5 (X) the user equipment decodes the received downlink data, and if the decoding is unsuccessful, according to a feedback rule Sending a negative acknowledgement NACK message to the base station by using the DPCCH in the first time slot or the second time slot, so that the base station continues to send the downlink to the user equipment through the DPDCH according to the NACK information.
- Data if the decoding is successful, sending, in the first time slot or the second time slot, the response ACK information to the base station by using the DPCCH according to the feedback rule, so that the base station according to the ACK The information stops sending downlink data to the user equipment.
- the base station may also send downlink data to the user equipment through the DPDCH, and the user continuously tries to decode the received downlink data.
- the user equipment feeds back according to a preset time interval, for example, every 3 and time slots. Or other feedback rules feed back the decoding situation to the base station.
- the decoding situation includes two types: successful decoding and unsuccessful decoding. If the decoding succeeds, the user equipment sends an ACK message to the base station, and the base station stops sending downlink data to the user equipment according to the ACK information to avoid waste of network resources. If the decoding is unsuccessful, the user equipment sends the NACK information to the base station, and the base station continues to send the downlink data to the user equipment according to the NACK information, until the user equipment can successfully decode the downlink data.
- the user equipment can also feed back NACK information or ACK information to the base station through the DPCCH to avoid adding a new channel to implement an increase in uplink overhead caused by feedback.
- the user equipment determines, according to the feedback rule, a time slot for transmitting the foregoing feedback information, which may be a first time slot, or may be a second time slot w, may be configured with a DPCCH time slot format for transmitting the time slot of the feedback information, so that The DPCCH slot format includes an ACK field to carry the above feedback information.
- Step 40 and step 50 and step 10-step 30 do not have a necessary timing relationship.
- the DPCCH slot format for transmitting the NACK information or the first time slot of the ACK information includes an ACK field.
- An ACK field is included in a DPCCH slot format of the second slot for transmitting the NACK information or the ACK information.
- Table 2 shows a DPCCH slot format for transmitting the first slot of NACK information or ACK information:
- the DPCCH slot format can be defined as DPCCH slot format 6.
- the DPCCH slot format includes a TFCI field N TFCI , and defines a bit number of the TFCI field of 5 to carry 5 bits of encoded TFCI information.
- the DPCCH slot format further includes an ACK field, and the number of bits in the ACK field is, for example, 2, to carry 2 bits of feedback information. For example, "00" may be preset to indicate NACK information, and "11" to indicate ACK information.
- the control information sent by the user equipment to the base station may not include TPC (transmit power control) information
- the ACK domain may be implemented through the TPC domain.
- Table 3 shows a DPCCH time slot format for a second time slot for transmitting NACK information or ACK information:
- the DPCCH slot format can be defined as DPCCH slot format 7. As shown in Table 3, the DPCCH slot format includes an ACK field, and the number of bits in the ACK field is, for example, 2, to carry 2 bits of feedback information.
- Table 4 shows another DPCCH slot format for transmitting a second slot of NACK information or ACK information:
- the DPCCH slot format can be defined as DPCCH slot format 8.
- the DPCCH slot format includes an ACK field, and the number of bits in the ACK field is, for example, 4, to carry 4 bits of feedback information.
- the control information sent by the user equipment to the base station may not include TPC (transmit power control) information
- the ACK field may be implemented through the TPC domain.
- the DPCCH slot format of the second slot in which the NACK information or the ACK information is not transmitted is in DPCCH slot format 1 or DPCCH slot format 4.
- Table 5 shows the DPCCH slot format 1:
- the TFCI field and the ACK field are not included in the DPCCH slot format 1 or the DPCCH slot format 4, so that more control information can be carried to avoid waste of channel resources.
- the control information transmission method provided by the present invention is described below with a specific example. However, the present invention does not use PMo as shown in FIG. 2.
- the time slot 0-time slot 5 adopts the DPCCH slot format 5 to carry the code.
- the TFCI information, time slot 7, time slot 10, and time slot 13, respectively, employ DPCCH slot format 7 or DPCCH slot format 8 to carry NACK information or ACK information.
- Slot 8, time slot 9, time slot 11, time slot 12, and time slot 14 employ DPCCH slot format 1 or DPCCH slot format 4.
- step 20 the user equipment sends the encoded transport format combination indication TFCI information to the base station through the dedicated physical control channel DPCCH in a continuous, first predetermined number of first time slots.
- the method further includes: Step 60: The user equipment determines the number of bits of the TFCI information according to the number of transport format combinations TFC in the pre-configured transport format combination set TFCS, and generates the TFCI information with the determined number of bits.
- the TFCI information is encoded to obtain the encoded TFCI header.
- the base station when the base station establishes a radio bearer for the user equipment, it indicates the TFCS used by the user equipment, where the TFCS includes a preset number of TFCs, and the user equipment can determine the number of bits of the TFCI information according to the number of the TFCs to avoid the TFCI.
- the information is a waste of resources caused by a fixed lObit.
- step 60 the user equipment determines the number of bits of the TFCI information according to the number of the transport format combination TFCs in the pre-configured transport format combination set TFCS, including:
- the number of bits of the TFCI information is determined by applying the following formula:
- N "l.g 2 A ⁇ ; where M is the number of the TFC, M is an integer and M is greater than 1, [log 2 indicates that the result of "l.g 2 M] is rounded up.
- the embodiment of the present invention provides a third control information transmission method.
- the third control information transmission party and the second control information transmission method are not described in detail, and only the differences between the two are described here.
- the control information transmission method includes:
- the base station sends downlink data to the user equipment through the dedicated physical data channel DPDCH;
- the user equipment receives the downlink data that is sent by the base station through the dedicated physical data channel DPDCH; and the user equipment passes the dedicated physical control in the second preset number of second time slots according to the decoding situation of the downlink data by the user equipment.
- the channel DPCCH sends a negative acknowledgement NACK message or a response ACK message to the base station, where a radio frame includes a first preset number of first time slots and the second preset number of second time slots, the first The preset number of first time slots are used by the user equipment to send the encoded transport format combination indication TFCI information to the base station by using the DPCCH, where the second preset number of second time slots are not used by the user
- the device sends the TFCI information.
- the user equipment sends NACK information to the base station by using the DPCCH in each of the second preset number of second time slots according to the decoding situation of the downlink data by the user equipment. Or ACK information.
- the user equipment sends the NACK information to the base station by using the DPCCH in each of the second preset number of second time slots.
- the user equipment successfully successfully decodes the downlink data before or at the beginning of the second preset number of second time slots, the user equipment is in each of the second preset number of In the two slots, the ACK information is sent to the base station through the DPCCH.
- the user equipment sends NACK information to the base station through the DPCCH in the first to the Pth second time slots, in the P+1 to the Nth In the second time slot, the ACK information is sent to the base station by using the DPCCH, where P is a positive integer smaller than N, and N is the number of the second preset number of second time slots, where N is A positive integer greater than or equal to 2.
- the DPCCH slot format of the first time slot includes a TFCI field
- the DPCCH slot format of the second time slot includes an ACK domain or a NACK domain
- the DPCCH slot format of the second time slot is used.
- a combination of an ACK field and a NACK field may also be included.
- the first preset number of first time slots are consecutive in the radio frame
- the second preset number of second time slots are consecutive in the radio frame.
- the user equipment determines the number of bits of the TFCI information according to the number of transport format combination TFCs in the pre-configured transport format combination set TFCS.
- the control information transmission method of the embodiment continuously transmits NACK or ACK information on the second preset number of second time slots, which can effectively avoid high and low level switching, thereby eliminating audio interference generated by the voice information. Further, since the user equipment continuously sends NACK or ACK information on the second preset number of second time slots, the error decoding of the feedback indication information (NACK or ACK) caused by the deterioration of the channel condition or the like is avoided. The reliability of reception of feedback information.
- FIG. 4 is a schematic structural diagram of a first user equipment 81 according to an embodiment of the present invention.
- the user equipment 81 provided in this embodiment may implement various steps of the control information transmission method provided by any embodiment of the present invention, and the specific implementation process is not described herein.
- the user equipment 81 provided in this embodiment specifically includes:
- the data sending unit 11 is configured to send uplink data to the base station by using a dedicated physical data channel DPDCH;
- the control information sending unit 12 is configured to send, by using the dedicated physical control channel DPCCH, the encoded transport format combination indication TFCI letter to the base station in a consecutive, first predetermined number of first time slots. And the base station, according to the encoded TFCI information, decoding the received uplink data sent by the user equipment 81, where the first preset quantity is smaller than that included by one radio frame. The number of time slots; in the second predetermined number of second time slots, the control information is sent to the base station by using the DPCCH, where the TFCI information is not included in the control information.
- the user equipment provided in this embodiment can transmit complete TFCI information to the base station in fewer time slots by expanding the bit number of the encoded TFCI information transmitted in each time slot, thereby avoiding passing a wireless A defect in which the frame transmits TFCI information to the base station with low efficiency.
- the transformed DPCCH slot format is applied to the case of carrying TFCI information and not carrying TFCI information, which can avoid waste of channel resources and improve application flexibility.
- the number of bits of the encoded TFCI information transmitted in one of the first time slots is not less than 5.
- the DPCCH slot format of the first slot includes a TFCI field, and the TFCI field is not included in the DPCCH slot format of the second slot.
- the user equipment includes: a data receiving unit, configured to receive downlink data that is sent by the base station by using a dedicated physical data channel DPDCH; and a control information sending unit, configured to be used according to the decoding situation of the downlink data by the user equipment in the second Sending a negative acknowledgement NACK message or a response ACK message to the base station by using a dedicated physical control channel DPCCH in a preset number of second time slots, where one radio frame includes a first preset number of first time slots and the second time slot a preset number of second time slots, where the first preset number of first time slots are used by the user equipment to send, by using the DPCCH, the encoded transport format combination indication TFCI information, the second A preset number of second time slots are not used by the user equipment to send the TFCI information.
- control information sending unit is configured to: according to the decoding situation of the downlink data by the user equipment, in each of the second preset number of second time slots, pass the DPCCH
- the base station transmits NACK information or ACK information.
- the optional control information sending unit is specifically configured to: if the user equipment fails to successfully decode the downlink data before each of the second preset number of second time slots, each of the second preset numbers In the second time slot, the NACK information is sent to the base station by using the DPCCH.
- the optional control information sending unit is specifically configured to: if the user equipment successfully successfully decodes the downlink data before each of the second preset number of second time slots, in each of the second In a preset number of second time slots, ACK information is sent to the base station through the DPCCH.
- the optional control information sending unit is specifically configured to: if the user equipment fails to successfully decode the downlink data before or at the beginning of the second preset number of second time slots, but in the second pre- Successfully decoding the downlink data before the end of the second number of time slots, and transmitting NACK information to the base station through the DPCCH in the first to the second second time slots, at the P+1 Sending ACK information to the base station by using the DPCCH to the Nth second time slot, where P is a positive integer smaller than N, and N is the second preset number of second time slots. Number, N is a positive integer greater than or equal to 2.
- the data receiving unit may be a receiver
- the control information sending unit may be a processor
- FIG. 5 is a schematic structural diagram of a second user equipment 81 according to an embodiment of the present invention. As shown in FIG. 5, in this embodiment, the user equipment 81 may further include:
- the data receiving unit 13 is configured to receive the downlink data that is sent by the base station by using the DPDCH.
- the first processing unit 14 is configured to decode the downlink data received by the data receiving unit 13, and if the decoding is unsuccessful, And transmitting, by the feedback rule, the control information sending unit 12, by using the DPCCH, negative acknowledgement NACK information to the base station in the first time slot or the second time slot, so that the base station is configured according to the The NACK information continues to send downlink data to the user equipment 81 through the DPDCH; if the decoding is successful, the control information sending unit 12 is caused to be in the first time slot or the second time slot according to the feedback rule. And transmitting, by the DPCCH, the acknowledgement ACK information to the base station, so that the base station stops sending downlink data to the user equipment 81 according to the ACK information.
- the user equipment 81 feeds back NACK information or ACK information to the base station through the DPCCH, thereby avoiding the addition of a new channel to achieve an increase in uplink overhead caused by feedback.
- the DPCCH slot format of the first slot for transmitting the NACK information or the ACK information includes an ACK field, and the foregoing is used for sending the NACK information or the ACK information.
- the ACK field is included in the DPCCH slot format of the second slot.
- the DPCCH slot format of the second slot in which the NACK information or the ACK information is not transmitted is in DPCCH slot format 1 or DPCCH slot format 4.
- the user equipment 81 may further include:
- the second processing unit 15 is configured to determine, according to the number of the transport format combination TFCs in the pre-configured transport format combination set TFCS, the number of bits of the TFCI information, and generate the TFCI information with the determined number of bits,
- the TFCI information is encoded to obtain the encoded TFCI address bin.
- the user equipment 81 determines the number of bits of the TFCI information according to the number of the TFCs to avoid waste of resources caused when the TFCI information is a fixed lObit.
- the second processing unit 15 is further configured to determine the number of bits N of the TFCI information by applying the following formula:
- N "l.g 2 A ⁇ ; where M is the number of the TFC, M is an integer and M is greater than 1, [log 2 indicates that the result of "l.g 2 M] is rounded up.
- FIG. 6 is a schematic structural diagram of a third user equipment 81 according to an embodiment of the present invention.
- the user equipment 81 provided in this embodiment may implement various steps of the control information transmission method provided by any embodiment of the present invention, and the specific implementation process is not described herein again.
- the user equipment 81 provided in this embodiment specifically includes:
- the data transmitter 21 is configured to send uplink data to the base station by using a dedicated physical data channel DPDCH.
- the control information transmitter 22 is configured to send, by using a dedicated physical control channel DPCCH, in a continuous, first predetermined number of first time slots.
- the base station sends the encoded transport format combination indication TFCI information, so that the base station decodes the received uplink data sent by the user equipment 81 according to the encoded TFCI information, where the The first preset number is smaller than the number of time slots included in one radio frame; in the second preset number of second time slots, the control information is sent to the base station by using the DPCCH, where the control information does not include the TFCI information.
- the data transmitter 21 and the control information transmitter 22 can be implemented by the same transmitter.
- the user equipment provided in this embodiment can transmit complete TFCI information to the base station in fewer time slots by expanding the bit number of the encoded TFCI information transmitted in each time slot, thereby avoiding passing a wireless A defect in which the frame transmits TFCI information to the base station with low efficiency.
- the transformed DPCCH slot format is applied to the case of carrying TFCI information and not carrying TFCI information, which can avoid waste of channel resources and improve application flexibility.
- the number of bits of the encoded TFCI information transmitted in one of the first time slots is not less than 5.
- the DPCCH slot format of the first slot includes a TFCI field, and the TFCI field is not included in the DPCCH slot format of the second slot.
- FIG. 7 is a schematic structural diagram of a third user equipment 81 according to an embodiment of the present invention. As shown in FIG. 7, in this embodiment, the user equipment 81 may further include:
- the receiver 23 is configured to receive downlink data that is sent by the base station by using the DPDCH.
- the processor 24 is configured to decode the downlink data received by the receiver 23, and if the decoding is unsuccessful, cause the control information transmitter 22 to be in the first time slot or the first according to a feedback rule.
- the negative acknowledgement NACK information is sent to the base station by using the DPCCH, so that the base station continues to send downlink data to the user equipment 81 through the DPDCH according to the NACK information;
- the feedback rule causes the control information transmitter 22 to send a response ACK message to the base station through the DPCCH in the first time slot or the second time slot, so that the base station according to the ACK
- the information stops transmitting downlink data to the user equipment 81.
- the user equipment 81 feeds back NACK information or ACK information to the base station through the DPCCH, thereby avoiding the addition of a new channel to achieve an increase in uplink overhead caused by feedback.
- the DPCCH slot format of the first slot for transmitting the NACK information or the ACK information includes an ACK field, and the foregoing is used for sending the NACK information or the ACK information.
- the ACK field is included in the DPCCH slot format of the second slot.
- the DPCCH slot format of the second slot in which the NACK information or the ACK information is not transmitted is in DPCCH slot format 1 or DPCCH slot format 4.
- the user equipment may further include:
- a processor configured to determine a number of bits of the TFCI information according to a quantity of a transport format combination TFC in a pre-configured transport format combination set TFCS, generate the TFCI information with a determined number of bits, and generate the TFCI
- the information is encoded to obtain the encoded TFCI information.
- the processor can implement the processor 24 as shown in FIG. 7 to implement the user equipment to determine the number of bits of the TFCI information according to the number of the TFCs, thereby avoiding resource waste caused by the TFCI information being a fixed lObit.
- the processor is further configured to determine a bit number N of the TFCI information by applying the following formula:
- N "l.g 2 A ⁇ ; where M is the number of the TFC, M is an integer and M is greater than 1, [log 2 indicates that the result of "l.g 2 M] is rounded up.
- a base station for performing the control information transmission method in the embodiment of the present invention.
- the base station includes: a data sending unit, configured to send downlink data to the user equipment by using a dedicated physical data channel DPDCH; and a control information receiving unit, configured to receive, by using a dedicated physical control channel DPCCH in a second preset number of second time slots a negative acknowledgement NACK message or a response ACK message sent by the user equipment, where a radio frame includes a first preset number of first time slots and the second preset number of second time slots, the first preset The first time slot of the quantity is used to receive the user equipment by using the
- the encoded transport format combination sent by the DPCCH indicates TFCI information, and the second preset number of second time slots are not used to receive the TFCI information sent by the user equipment.
- control information receiving unit is configured to receive NACK information or ACK information sent by the user equipment by using the DPCCH in each of the second preset number of second time slots.
- the optional control information receiving unit is configured to: if the user equipment fails to successfully decode the downlink data before each of the second preset number of second time slots, in each of the second preset number of In the second time slot, the NACK information sent by the user equipment is received by using the DPCCH.
- control information receiving unit is configured to: if the user equipment successfully decodes the downlink data before each of the second preset number of second time slots, in each of the second pre- The ACK information sent by the user equipment is received by the DPCCH in the second time slot.
- the optional control information receiving unit is configured to: if the user equipment fails to successfully decode the downlink data before the start or start of the second preset number of second time slots, but is in the second preset If the downlink data is successfully decoded before the end of the second time slot, the NACK information sent by the user equipment is received by the DPCCH in the first to the Pth second time slots, at the Pth Receiving ACK information sent by the user equipment by using the DPCCH, where +1 to the Nth second time slot, where P is a positive integer smaller than N, and N is the second preset number The number of two slots, N is a positive integer greater than or equal to 2.
- the data sending unit may be a transmitter
- the control information receiving unit may be a receiver
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Abstract
La présente invention concerne, dans certains modes de réalisation, un procédé de transmission d'informations de commande et un équipement d'utilisateur. Le procédé de transmission d'informations de commande comporte les étapes suivantes: un équipement d'utilisateur envoie des données en liaison montante à une station de base via un DPDCH; il envoie des informations codées de TFCI à la station de base via le DPCCH dans des premiers créneaux temporels continus d'un premier nombre prédéfini, ledit premier nombre prédéfini étant inférieur au nombre de créneaux temporels contenus dans une trame radio; et il envoie des informations de commande à la station de base via le DPCCH dans des deuxièmes créneaux temporels d'un deuxième nombre prédéfini, les informations de commande ne comprenant pas les informations de TFCI. Selon le procédé de transmission d'informations de commande et l'équipement d'utilisateur décrit dans les modes de réalisation de la présente invention, le défaut que représente un faible rendement dû au fait que les informations de TFCI sont envoyées à la station de base via une trame radio est évité, et la souplesse d'application est améliorée.
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CN1533066A (zh) * | 2003-03-18 | 2004-09-29 | 华为技术有限公司 | 一种对不同速率业务的上行解调方法 |
CN1751469A (zh) * | 2003-02-17 | 2006-03-22 | 艾利森电话股份有限公司 | 信道自适应的方法和系统 |
CN101237297A (zh) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | 一种传输增强上行专用信道控制信息的方法、装置及系统 |
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CN1347604A (zh) * | 1999-04-12 | 2002-05-01 | 三星电子株式会社 | 码分多址通信系统中的选通传输装置和方法 |
CN1751469A (zh) * | 2003-02-17 | 2006-03-22 | 艾利森电话股份有限公司 | 信道自适应的方法和系统 |
CN1533066A (zh) * | 2003-03-18 | 2004-09-29 | 华为技术有限公司 | 一种对不同速率业务的上行解调方法 |
CN101237297A (zh) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | 一种传输增强上行专用信道控制信息的方法、装置及系统 |
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